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The ${(I E)}_{1}$ an dthe ${(I E)}_{2}$ in kJ ${m o l}^{- 1}$ of few elements designated by Roman numerals are shown below:

Element ${(I E)}_{1}$ ${(I E)}_{2}$ 1 2372 5251 2 520 7300 3 900 1760 4 1680 3380 Which of the above elements is likely to be a (a) reactive metal (b) reactive non-metal (c) noble gas (d) metal that forms a stable binary halide of the ${A X}_{2}$ Write the sequence of your answer.

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Solution

(a) Element 2 has a very low value of first ionization energy and a high value of second ionization energy. Hence, it is reactive alkali metal.
Its first ionization energy is lowest among the given elements.

(b) Element 4 has a second-highest value of first ionization energy among the given elements.
Hence, it is reactive non-metal.

(c) The element 1 has the highest value of first ionization energy among the given elements.
Hence, it is a noble gas

(d) Element 3 has the second-lowest value of first ionization energy among the given elements.
Hence, it forms a stable binary halide of the type $A X_{2}$

Hence, the correct sequence is $2413.$

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Similar questions

(I E)_{1}

(I E)_{2}

^{- 1}

of a few elements designated by Roman numerals are shown below

Element	$(I E)_{1}$	$(I E)_{2}$
A	2372	5251
B	520	7300
C	900	1760
D	1680	3380

Based on above information, Which represents a noble gas ?

Q. The ionization enthalpies,

(I E)_{1}

(I E)_{2}

^{- 1}

of a few elements designated by Roman numerals are shown below :

Element	$(I E)_{1}$	$(I E)_{2}$
A	2372	5251
B	520	7300
C	900	1760
D	1680	3380

Which of the above elements form a stable binary halide of the formula

M X_{2}

I . E ._{1}

I . E ._{2}

k J m o l^{- 1}

of a few elements designated by P, Q, R, S are shown

Atom	$I . E ._{1}$	$I . E ._{2}$
A	2372	5251
B	520	7300
C	900	1760
D	1680	3380

Based on above information, Which of the element is likely to be reactive metal?

I E_{1}

I E_{2}

) ionization energies (kJ/mol) of a few elements designated by Roman numerals are given below. Which of these would be an alkali metal?

(I E_{1})

(I E_{2})

k J m o l^{- 1}

of a few elements designated by Roman numerals are shown below:

\begin{matrix} I & I I I E_{1} & 400 & 589 I E_{2} & 2510 & 1120 \end{matrix}

I

I I

respectively are likely to be?

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